Monitoring

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Actiniaria: Distributed Dynamic-IR-Drop-Aware Timing Monitor for AVFS With Lightweight Tentacles

Actiniaria: Distributed Dynamic-IR-Drop-Aware Timing Monitor for AVFS With Lightweight Tentacles 150 150
Author(s): Junyi Qian, Lishuo Deng, Cai Li, Yizhi Ding, Weiwei Shan

Abstract:

Advances in integrated circuit (IC) technology have amplified the effects of process, voltage, and temperature (PVT) variations, particularly dynamic IR drop, which severely affects timing. Post-silicon IR drop monitoring circuits are lacking, forcing designers to reserve substantial static guard bands for worst-case scenarios, compromising energy efficiency. Inspired by biomimetics, this …

Published in: IEEE Solid-State Circuits Letters
Page(s): 25 – 28
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3645701
Publisher: IEEE

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Advancing On-Cell Near-Field Monitoring for Thermal Runaway Detection in EV Batteries

Advancing On-Cell Near-Field Monitoring for Thermal Runaway Detection in EV Batteries 150 150
Author(s): Simon Foster, Scott Block, Daniel McMitchell, Edgar Colin-Beltran, Robert Dailey

Abstract:

A cell monitoring system for performance and safety enhancement is presented. It is the first commercially available single-chip-on-cell near-field contactless solution for automotive battery management, simplifying pack interconnect and reducing points of failure. This letter is a companion paper to the earlier ISSCC paper. It provides further details on the …

Published in: IEEE Solid-State Circuits Letters
Page(s): 369 – 372
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3634340
Publisher: IEEE

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A 4.6 μW, 133-VPP Common-Mode Interference-Tolerant Biopotential Amplifier for Two-Electrode Recording System in 110-nm CMOS

A 4.6 μW, 133-VPP Common-Mode Interference-Tolerant Biopotential Amplifier for Two-Electrode Recording System in 110-nm CMOS 150 150
Author(s): Yongjae Park, Yeong-Jin Mo, Jeong-Hoon Kim, Gert Cauwenberghs, Seong-Jin Kim

Abstract:

This article presents a biopotential recording analog front-end (AFE) specifically tailored for a two-electrode measurement system, capable of capturing small biopotential signals while tolerating a large common-mode interference (CMI) over 130 VPP. By leveraging the Miller effect, the proposed CMI-Follower provides a significantly low common-mode input impedance ( $Z_{\text {IN-CM-C}}$ ), achieving …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3613410
Publisher: IEEE

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Dual-Junction Monolithically Integrated Monitoring Photodiode With a Two-Stage 18 GHz 18 pA/√Hz TIA in 22-nm FDSOI

Dual-Junction Monolithically Integrated Monitoring Photodiode With a Two-Stage 18 GHz 18 pA/√Hz TIA in 22-nm FDSOI 150 150
Author(s): Jelle H. T. Bakker, Nimit Jain, Paul Klatser, Mark S. Oude Alink, Bram Nauta

Abstract:

We present a monolithically integrated (MI) dualjunction monitoring photodiode (PD) and transimpedance amplifier (TIA). The photocurrent originates from the deep Nwell (DNW)/P-type substrate (PSUB) $({\lt }5~ \mathrm {GHz})$ and the P-Well $(\mathrm {PW}) / \mathrm {DNW}({\gt }1~ \mathrm {GHz})$ junctions. The presented combination of bulk PD and 22 nm fully-depleted silicon-on-insulator (FDSOI) …

Published in: IEEE Solid-State Circuits Letters
Page(s): 313 – 316
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3615656
Publisher: IEEE

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A Unified Early-Warning AVFS Design With Path Activation-Aware Monitoring Point Optimization

A Unified Early-Warning AVFS Design With Path Activation-Aware Monitoring Point Optimization 150 150
Author(s): Cai Li, Kaize Zhou, Junyi Qian, Haochang Zhi, Weiwei Shan

Abstract:

This work proposes a unified early-warning adaptive voltage-frequency scaling (AVFS) system that offers a practical low-power solution for commercial IoT devices. First, a path activation-aware monitoring point optimization strategy is proposed to mitigate the risk of illegal voltage scaling. The strategy combines the path activation evaluation with the required timing …

Published in: IEEE Solid-State Circuits Letters
Page(s): 229 – 232
Year of Publication: 2025
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3593960
Publisher: IEEE

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